linux-kernel - Re: [PATCH] lockdep: Fix static memory detection even more

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Date:   Mon, 14 Aug 2023 21:40:42 +0800
From:   kernel test robot <oliver.sang@...el.com>
To:     Helge Deller <deller@....de>
CC:     <oe-lkp@...ts.linux.dev>, <lkp@...el.com>,
        <linux-kernel@...r.kernel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        <linux-parisc@...r.kernel.org>, Guenter Roeck <linux@...ck-us.net>,
        "Borislav Petkov" <bp@...e.de>,
        Peter Zijlstra <peterz@...radead.org>, <oliver.sang@...el.com>
Subject: Re: [PATCH] lockdep: Fix static memory detection even more



Hello,

kernel test robot noticed "BUG:key#has_not_been_registered" on:

commit: 94d4413e506da48ea18f1cc982202874d35c76b1 ("[PATCH] lockdep: Fix static memory detection even more")
url: https://github.com/intel-lab-lkp/linux/commits/Helge-Deller/lockdep-Fix-static-memory-detection-even-more/20230812-235022
base: https://git.kernel.org/cgit/linux/kernel/git/akpm/mm.git mm-everything
patch link: https://lore.kernel.org/all/ZNep5EcYskP9HtGD@p100/
patch subject: [PATCH] lockdep: Fix static memory detection even more

in testcase: boot

compiler: gcc-12
test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G

(please refer to attached dmesg/kmsg for entire log/backtrace)



If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <oliver.sang@...el.com>
| Closes: https://lore.kernel.org/oe-lkp/202308141646.d3160c77-oliver.sang@intel.com



[    0.575811][    T1] BUG: key b35c282c has not been registered!
[    0.576580][    T1] ------------[ cut here ]------------
[    0.577216][    T1] DEBUG_LOCKS_WARN_ON(1)
[    0.577236][    T1] WARNING: CPU: 0 PID: 1 at kernel/locking/lockdep.c:4888 lockdep_init_map_type+0x155/0x250
[    0.578389][    T1] Modules linked in:
[    0.578856][    T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.5.0-rc4-00587-g94d4413e506d #2
[    0.579899][    T1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[    0.581143][    T1] EIP: lockdep_init_map_type+0x155/0x250
[    0.581677][    T1] Code: 70 a2 51 b4 85 db 75 ab e8 78 79 80 00 85 c0 74 a2 8b 0d 98 0a d4 b3 85 c9 75 98 68 59 2a 3b b3 68 8a ce 36 b3 e8 2b 7a f8 ff <0f> 0b 58
 5a eb 83 8d 74 26 00 90 e8 4b 79 80 00 85 c0 0f 84 71 ff
[    0.584028][    T1] EAX: 00000016 EBX: 00000000 ECX: 00000000 EDX: 00000000
[    0.584881][    T1] ESI: b3384ac4 EDI: b35c282c EBP: b67fbe58 ESP: b67fbe44
[    0.585009][    T1] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 EFLAGS: 00010286
[    0.585927][    T1] CR0: 80050033 CR2: ff999000 CR3: 03f25000 CR4: 000406d0
[    0.586773][    T1] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
[    0.587629][    T1] DR6: fffe0ff0 DR7: 00000400
[    0.588198][    T1] Call Trace:
[    0.588344][    T1]  ? show_regs+0x74/0x80
[    0.588860][    T1]  ? lockdep_init_map_type+0x155/0x250
[    0.589521][    T1]  ? __warn+0x71/0x160
[    0.590011][    T1]  ? lockdep_init_map_type+0x155/0x250
[    0.590684][    T1]  ? report_bug+0x158/0x180
[    0.591242][    T1]  ? exc_overflow+0x40/0x40
[    0.591677][    T1]  ? handle_bug+0x2a/0x50
[    0.592202][    T1]  ? exc_invalid_op+0x25/0x70
[    0.592749][    T1]  ? handle_exception+0x14d/0x14d
[    0.593337][    T1]  ? exc_overflow+0x40/0x40
[    0.593881][    T1]  ? lockdep_init_map_type+0x155/0x250
[    0.594502][    T1]  ? exc_overflow+0x40/0x40
[    0.595011][    T1]  ? lockdep_init_map_type+0x155/0x250
[    0.595653][    T1]  __kernfs_create_file+0x6a/0xe0
[    0.596244][    T1]  sysfs_add_bin_file_mode_ns+0x4e/0xc0
[    0.596891][    T1]  sysfs_create_bin_file+0x5c/0x90
[    0.597496][    T1]  ? nsproxy_cache_init+0x30/0x30
[    0.598090][    T1]  ksysfs_init+0x5c/0x90
[    0.598350][    T1]  ? nsproxy_cache_init+0x30/0x30
[    0.598935][    T1]  do_one_initcall+0x5b/0x2f0
[    0.599480][    T1]  ? parse_args+0x1f3/0x350
[    0.600028][    T1]  do_initcalls+0xe4/0x1e0
[    0.600558][    T1]  kernel_init_freeable+0x171/0x2a0
[    0.601187][    T1]  ? rest_init+0x1b0/0x1b0
[    0.601677][    T1]  kernel_init+0x17/0x1b0
[    0.602193][    T1]  ret_from_fork+0x35/0x50
[    0.602714][    T1]  ? rest_init+0x1b0/0x1b0
[    0.603235][    T1]  ret_from_fork_asm+0x12/0x20
[    0.603812][    T1]  entry_INT80_32+0x10d/0x10d
[    0.604359][    T1] irq event stamp: 7609
[    0.604842][    T1] hardirqs last  enabled at (7609): [<b1114e0e>] __up_console_sem+0x5e/0x80
[    0.605011][    T1] hardirqs last disabled at (7608): [<b1114df5>] __up_console_sem+0x45/0x80
[    0.606012][    T1] softirqs last  enabled at (7260): [<b27a3d23>] __do_softirq+0x2a3/0x3a8
[    0.607008][    T1] softirqs last disabled at (7229): [<b102f2e6>] do_softirq_own_stack+0x26/0x30
[    0.608086][    T1] ---[ end trace 0000000000000000 ]---



The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20230814/202308141646.d3160c77-oliver.sang@intel.com



-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki